海洋测绘2023，Vol.43Issue(6)：46-50,5.DOI:10.3969/j.issn.1671-3044.2023.06.011
海面非对称航迹对海底定位精度影响分析
Analysis of asymmetrical effects of surface-to-seafloor control networks
摘要
Abstract
The seafloor datum point positioning accuracy and reliability are related to the positioning geometry.In order to investigate the influence mechanism of acoustic ranging error on seafloor datum location under asymmetric sea surface navigation condition,based on the influence function of acoustic velocity field systematic error,we construct a comprehensive optimization criterion for the design of sea-bottom control network considering the influence of positioning accuracy criterion and systematic error.Considering the constant systematic errors and time-varying systematic errors of sound velocity field,the simulation experiment of asymmetrical navigation observation is carried out.The experimental results show that the symmetrical sea surface control network about the seafloor datum point can minimize the influence of the constant systematic error of the acoustic velocity field,and with the attenuation of the geometric strength of the positioning configuration,the influence of the time-varying systematic error of the acoustic velocity field on the positioning of the seafloor datum point will be transformed between the horizontal and elevation components.关键词
走航式定位/控制网优化/定位构型/声速误差/精度衰减因子Key words
positioning configuration/asymmetric observation/systematic error of sound velocity field/control network optimization分类
天文与地球科学引用本文复制引用
卞加超,薛树强,肖圳,李景森,王凯明..海面非对称航迹对海底定位精度影响分析[J].海洋测绘,2023,43(6):46-50,5.基金项目
国家自然科学基金(41931076). （41931076）
